Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Ariidae
(Sea catfishes) > Ariinae
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical; 3°S - 6°S
Oceania: endemic to Sepik and Ramu rivers in Papua New Guinea.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 36 - ? cm
Max length : 75.0 cm SL male/unsexed; (Ref. 2847); common length : 45.0 cm SL male/unsexed; (Ref. 9233); common length :45 cm SL (female); max. published weight: 5.0 kg (Ref. 9233)
Morphology | Morphometrics
Found in rivers only. Occurs at temperatures ranging from 26 to 32°C. Mainly diurnal. Feeds mainly on fine and coarse detritus, other plant material (particularly seeds and small pieces of bark), and especially prawns. Also preys on aquatic insects and nymphs, fishes, worms and leeches (Ref. 2847).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Coates, D., 1991. Biology of fork-tailed catfishes from the Sepik River, Papua New Guinea. Environ. Biol. Fish. 31:55-74. (Ref. 9233)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Traumatogenic (Ref. 58010)
Fisheries: subsistence fisheries
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.41 se; Based on food items.
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High to very high vulnerability (65 of 100) .